NAME

osck − check integrity of OS in SDF boot area(s)

SYNOPSIS

/etc/osck [ −v ] volume

HP-UX COMPATIBILITY

Level: HP-UX/NON-STANDARD

Origin: HP

Remarks: Osck is implemented on the Series 500 only. 

DESCRIPTION

Osck checks one operating system in the boot area on the volume specified by volume (a character special file). 

The OSF must be the first section of an n-section operating system.  If n is greater than one, osck prompts for additional volumes as needed.  The volumes must be mounted in order. 

The −v (verbose) option causes osck to print additional information about each volume and each code segment as they are encountered.  If −v is not specified, it is silent except for warnings, errors, and prompts for new volumes. 

Osck checks the following:

OSF headers are valid and consistent across multiple volumes;

the first code segment is a power-up segment;

the code segment chain contains correct headers and lengths;

all segment checksums are correct;

the system terminates correctly after the last segment. 

SEE ALSO

oscp(1M), osmark(1M), osmgr(1M), sdfinit(1M). 

DIAGNOSTICS

Osck gives an appropriate error message and returns a non-zero value if volume cannot be accessed or is not an SDF volume, there is no boot area, or the boot area contents appear invalid.  Error messages are also given if any integrity violation is found.  See osmgr(1M) for a complete list of return values. 

Hewlett-Packard  —  last mod. May 11, 2021